Professor Andrey L. Rogach of City University of Hong Kong was invited to pay a visit to ECUST on September 26th, 2016, and he delivered an academic report entitled “Perovskite nanocrystals: synthesis, hybrid structures and their use in light emitting devices” . The academic report was chaired by professor Yuan Yuan, Vice Dean of the School Material Science, and attended by proffessor Li Yongsheng, professor Zhu Yihua and part of students of the School of Material Science.